Ceiling Insulation on Intake Assy???

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Blitzpatrollie
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Ceiling Insulation on Intake Assy???

Post by Blitzpatrollie » 21 Feb 2014 21:42

Howzit guys,

Okay I spoke to Graham the other day about my power loss issues, and he suggested to start with fuel pump pressure. Clamped off the fuel return line and drove: No noticeable difference. He then said the under bonnet temps get too high, especially as I have branches which are open, not insulated. So I got some asbestos tape and wrapped up the branches, then ran out. I've got about half the exposed exhaust pipes covered.

BTW, just coz of the tape, don't thing the exhaust is cold! I drove a long uphill, turned off and popped the hood and touched the branch expecting it to be cold. The blister on my hand says it was not. :surprised:

Anyway, no difference after that either. Will insulate the rest shortly, but want to focus on reducing air intake temps, so my question is this: (Don't laff, bloody agent...)

Can I use foil type ceiling insulation (Sisalation) to wrap up my air intake system from fender thru air cleaner housing to just short of the head?

Shoot with some ideas okes, I cant imagine the troll needs to gear to second to climb a hill at 50kmh with an EMPTY trailer on the back surely!?

Sharp

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Re: Ceiling Insulation on Intake Assy???

Post by Chris Skinner » 22 Feb 2014 16:29

Gavin, 'om the meet is om te weet' - you can do one of two things to try determine if you are really losing power.
Go have a dyno done, or find a mate with similar model Patrol and do some one on one comparisons on acceleration etc.
As an engineer, I was taught you need to know for sure before you start trying to fix things.

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Re: Ceiling Insulation on Intake Assy???

Post by Stefan » 24 Feb 2014 12:45

Do you have a snorkel fitted Gavin?

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Re: Ceiling Insulation on Intake Assy???

Post by tour de frans » 24 Feb 2014 13:21

What am I missing here? Is this the same car I sugested to close the fuel return? :think:
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Re: Ceiling Insulation on Intake Assy???

Post by Blitzpatrollie » 21 May 2014 18:38

Hi Oom Frans,

Sorry I've been out of action for a while, even considered trading my trollies in on something else. I don't mind the heavy fuel consumption if I get the performance out of it, but most days my troll really struggles on the uphills, and I mean sukkel. The raod to the farm next door is a kronkel tar road that climbs about 160m over 2km, most times it would gear to second to get up there. With an empty trailer on, definitely in second and prob no more than 30kmh. For 185kw, this is not right.

Eks nie seker of dit oom was wat gese het ek moet die fuel return afknyp nie, maar Graham het, en ek het dit gedoen met geen verskil nie. Wat ek wel agter gekom het is dat daar 'n vacuum was in die brandstof tenk, toe het ek twee gaatjies deur die cap geboor en meeste van die tyd BAIE beter. Maar my troll is meer buierig as my vrou op 'n slegte dag. Dan vlieg hy en vat net hier en daar grond, dan kruip hy weer soos 'n dronkmens rond.

Ek kan nie verstaan hoekom hy so maak nie, maar klink my dis nie heeltemal buite die norm vir die autos nie??

@Stefan,

No don't have a snorkel fitted yet, but that's first (read cheapest) on my list of next to do. I wanted to trade my troll and very nearly did for a navara last week, but thankfully I guzzled some red wine with my swear on the weekend and he convinced me that a bigger instalment on a turbo diesel would not necessarily solve my problem. I tend to think he's right. We have small kids at the moment, but we're offroad campers at heart and will definitely want to do so again once the kids are a little bigger, so 4x2 would not have been wise...

Anyhow, to answer your question again, no, no snorkel. Do you have one and would you say it makes worthwhile difference?

Thanks guys!

Gav

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Re: Ceiling Insulation on Intake Assy???

Post by Tinus lotz » 21 May 2014 18:49

I think you must just take your patrol to graham for a check up
He has all the kit to test it properly . You could have a bloced exhaust bad feul pump bad or dirty feul filter ect ect .
my 4.8 had similar usses and it was becouse of a tank of bad feul :mytwocents:

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Re: Ceiling Insulation on Intake Assy???

Post by Tinus lotz » 21 May 2014 18:53

O yes and he can fit a snorkel for just over 3k

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Re: Ceiling Insulation on Intake Assy???

Post by Tinus lotz » 21 May 2014 18:53

O yes and he can fit a snorkel for just over 3k

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Re: Ceiling Insulation on Intake Assy???

Post by Blitzpatrollie » 21 May 2014 20:00

Hey guys,

Yes I kind of thought that's the only way. I'll have to drive it up to him and fly back to Nelspruit, then fly up again to fetch. He said he needs it for about 2 days :)

Thanks for the advice guys!

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Re: Ceiling Insulation on Intake Assy???

Post by Chris Skinner » 21 May 2014 20:28

Gavin, it sounds like this car has some aftermarket mods (branch etc), and if there are branches, you can be sure there is a chip mod or something similar - this could be where your problem lie - find out who did the mods and what was done - maybe they can help.
Have a dyno test, or do some comparative performance checks with another 4.8, this will tell you a lot.
Good luck...

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